Yezz Billy 4 vs ZTE Open C
Yezz Billy 4
ZTE Open C
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Network
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2G networkGSM 850, 900, 1800, 1900GSM 850, 900, 1800, 1900
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3G networkHSDPA 850, 1900HSDPA 900, 2100
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HSDPA speed42.2 MbpsHSDPA, 21 Mbps
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HSUPA speed5.76 MbpsHSUPA, 5.76 Mbps
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GPRSYesYes
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EDGEYesYes
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Availability
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Status2014-102014-5
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Oficially announced2014-62014-2
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Design
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SIMDual SIM (Micro-SIM)Micro-SIM
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Height122.5 mm126 mm
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Width64.4 mm64.7 mm
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Thickness9.9 mm10.8 mm
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Weight109 g125 g
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ColorsBlack, Blue, Champing Gold, Gun Metal, Red, White, YellowBlack, Orange
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Display
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Display typeTFT capacitive touchscreenTFT capacitive touchscreen
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Physical size4.0 inches4.0 inches
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Resolution480 x 800 pixels480 x 800 pixels
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Pixel density233 ppi233 ppi
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Display colors16777216262144
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Hardware
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CPUQuad-core 1.2 GHz ARM Cortex-A7Dual-core 1.2 GHz ARM Cortex-A7
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ChipsetQualcomm MSM8212 Snapdragon 200Qualcomm MSM8210 Snapdragon 200
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GPUAdreno 302Adreno 302
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Internal storage4 GB4 GB
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Memory RAM512 MB512 MB
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Memory cardmicroSDmicroSD
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Memory card max128 GB32 GB
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OS
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OSMicrosoft Windows Phone 8.1Firefox OS 1.3
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Main camera
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Main camera8 MP3.15 MP
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Primary camera resolution3264 x 2448 pixels2048 x 1536 pixels
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Primary camera video720p@30fps352x288@15fps
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Primary camera Autofocusautofocus-
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Primary camera flashLED flash-
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Camera featuresGeo-tagging, touch focus-
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Selfie camera
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Secondary camera-No
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Selfie camera1.3 MP
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Sound
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3.5mm jackYesYes
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LoudspeakerYesYes
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NotificationsVibration; MP3, WAV ringtonesVibration; MP3 ringtones
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Multimedia
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Radio FMStereo FM radioFM radio
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Connectivity
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WLANWi-Fi 802.11a, 802.11b, 802.11g, 802.11nWi-Fi 802.11b, 802.11g, 802.11n
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WLAN WiFi HotspotYesYes
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USBmicroUSB 2.0microUSB 2.0
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Bluetoothv4.0Yes
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Bluetooth A2DPYes-
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GPSYes, with A-GPSYes, with A-GPS
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GLONASSYes-
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Features
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Messaging SMSSMS(threaded view)SMS(threaded view)
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Messaging MMSMMSMMS
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Messaging EmailEmailEmail
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Messaging IMIMIM
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Messaging Push EmailPush EmailPush Email
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JavaNoNo
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SensorsAccelerometer, proximity-
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Browser
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HTMLHTML5Yes
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Battery
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Battery typeLi-IonLi-Ion
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Battery capacity1300 mAh1400 mAh
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Talk time-6 h
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Talk time 2G7 h-
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Talk time 3G4 h 30 min-
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Standby time-150 h
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Standby time 2G350 h-
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Standby time 3G300 h-